40030512664544 has 24 divisors (see below), whose sum is σ = 78810229149120. Its totient is φ = 20015216372736.

The previous prime is 40030512664543. The next prime is 40030512664561. The reversal of 40030512664544 is 44546621503004.

It is a junction number, because it is equal to n+sod(n) for n = 40030512664495 and 40030512664504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40030512664543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21287057 + ... + 23091119.

It is an arithmetic number, because the mean of its divisors is an integer number (3283759547880).

Almost surely, 2^{40030512664544} is an apocalyptic number.

It is an amenable number.

40030512664544 is a deficient number, since it is larger than the sum of its proper divisors (38779716484576).

40030512664544 is a wasteful number, since it uses less digits than its factorization.

40030512664544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2497482 (or 2497474 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 44.

The spelling of 40030512664544 in words is "forty trillion, thirty billion, five hundred twelve million, six hundred sixty-four thousand, five hundred forty-four".